Thanks for all your replies, they are very helpful. I think we will give Mount Pleasant a miss. It looks good on the website but I got a bit suspicious when I saw, on the map, how close it is to the airport. I agree with your comments about western Dorset, we know it well, especially Swanage, and have our own favourit site there (if you know Kevin and his mum you will understand why we like it ) but we were looking for somewhere a bit different and closer to home. The Forestry commission sites look good so we may try one of them, or the CC site (Black Knowl I think its called) near Brockenhurst. Thanks again for all the very useful replies. Jim.